.page-products {
  --cat-line: rgba(168, 180, 188, 0.28);
  --cat-line-soft: rgba(168, 180, 188, 0.16);
  --cat-glow: rgba(37, 240, 224, 0.35);
  --cat-gold-soft: rgba(217, 164, 65, 0.22);
  --cat-glass: rgba(248, 250, 251, 0.06);
}

/* ---------- 首屏 ---------- */
.page-products .cat-hero {
  position: relative;
  overflow: hidden;
  padding: 28px 0 56px;
  color: var(--white);
  background:
    radial-gradient(120% 88% at 84% 6%, rgba(37, 240, 224, 0.14), transparent 58%),
    radial-gradient(90% 70% at 4% 96%, rgba(217, 164, 65, 0.12), transparent 60%),
    linear-gradient(158deg, var(--ink-900) 0%, var(--ink-800) 54%, var(--ink-700) 100%);
}

.page-products .cat-hero::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-cyan), transparent);
}

.page-products .cat-hero .breadcrumb {
  margin-bottom: 26px;
}

.page-products .cat-hero .breadcrumb__link,
.page-products .cat-hero .breadcrumb__current {
  color: var(--gray-2);
}

.page-products .cat-hero .breadcrumb__link:hover,
.page-products .cat-hero .breadcrumb__link:focus-visible {
  color: var(--cyan);
}

.page-products .cat-hero__grid {
  display: grid;
  gap: 30px;
}

.page-products .cat-hero__lead {
  min-width: 0;
}

.page-products .cat-hero .eyebrow {
  margin: 0 0 14px;
  color: var(--gold);
  letter-spacing: 0.18em;
}

.page-products .cat-hero h1 {
  margin: 0 0 18px;
  font-family: var(--font-head);
  font-size: clamp(30px, 7vw, 54px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-products .cat-hero .lede {
  margin: 0 0 26px;
  max-width: 46em;
  font-size: 16px;
  line-height: 1.75;
  color: rgba(248, 250, 251, 0.82);
}

.page-products .cat-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 32px;
}

.page-products .cat-hero__facts {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  background: var(--cat-line-soft);
  border-top: 1px solid var(--cat-line);
  border-bottom: 1px solid var(--cat-line);
}

.page-products .cat-hero__fact {
  padding: 14px 16px;
  background: rgba(6, 26, 36, 0.55);
}

.page-products .cat-hero__fact dt {
  margin-bottom: 6px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--gray-2);
}

.page-products .cat-hero__fact dd {
  margin: 0;
  font-size: 16px;
  color: var(--cyan);
  word-break: break-word;
}

.page-products .cat-hero__figure {
  margin: 0;
  border: 1px solid var(--cat-line);
  background: rgba(6, 26, 36, 0.45);
}

.page-products .cat-hero__figure .media-frame__caption {
  padding: 12px 14px;
  border-top: 1px solid var(--cat-line-soft);
  color: var(--gray-2);
}

/* ---------- 章节通用 ---------- */
.page-products .section-head {
  margin-bottom: 28px;
}

.page-products .section-head__num {
  margin: 0 0 10px;
  font-size: 13px;
  letter-spacing: 0.24em;
  color: var(--gold);
}

.page-products .section-head__title {
  margin: 0 0 12px;
  font-family: var(--font-head);
  font-size: clamp(24px, 4.4vw, 36px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.page-products .section-head__note {
  margin: 0;
  max-width: 48em;
  font-size: 15px;
  line-height: 1.7;
  color: var(--gray);
}

.page-products .section-head--light .section-head__title {
  color: var(--white);
}

.page-products .section-head--light .section-head__note {
  color: var(--gray-2);
}

.page-products .cat-link {
  color: var(--ink-700);
  text-decoration: none;
  border-bottom: 1px solid var(--gold);
  padding-bottom: 1px;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.page-products .cat-link:hover,
.page-products .cat-link:focus-visible {
  color: var(--gold);
  border-color: var(--cyan);
}

/* ---------- 02 V3 总览 ---------- */
.page-products .cat-overview-band {
  padding: 56px 0;
}

.page-products .cat-overview {
  display: grid;
  gap: 20px;
}

.page-products .cat-overview__main {
  padding: 24px 20px;
  border: 1px solid var(--cat-line);
  border-left: 3px solid var(--gold);
}

.page-products .cat-overview__head {
  margin: 0 0 12px;
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 700;
  color: var(--ink-800);
}

.page-products .cat-overview__text {
  margin: 0 0 22px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-700);
}

.page-products .cat-steps {
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--cat-line-soft);
}

.page-products .cat-steps__item {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 12px;
  align-items: baseline;
  padding: 13px 0;
  border-bottom: 1px solid var(--cat-line-soft);
}

.page-products .cat-steps__num {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-products .cat-steps__text {
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--ink-700);
}

.page-products .cat-versionchip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  padding: 12px 14px;
  background: var(--paper-2);
  border: 1px solid var(--cat-line-soft);
}

.page-products .cat-versionchip__label {
  font-size: 13px;
  color: var(--gray);
}

.page-products .cat-versionchip__code {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--ink-800);
}

.page-products .cat-overview__side {
  display: grid;
  gap: 14px;
}

.page-products .cat-card {
  padding: 20px 18px;
  background: var(--white);
  border: 1px solid var(--cat-line-soft);
  border-top: 2px solid var(--ink-800);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.page-products .cat-card:hover,
.page-products .cat-card:focus-within {
  border-top-color: var(--cyan);
}

.page-products .cat-card__tag {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-products .cat-card__title {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 700;
  color: var(--ink-800);
}

.page-products .cat-card__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-700);
}

/* ---------- 03 版本对照 ---------- */
.page-products .cat-map-band {
  padding: 56px 0;
}

.page-products .cat-map__figure {
  margin: 0 0 28px;
  border: 1px solid var(--cat-line);
}

.page-products .cat-map__figure .media-frame__caption {
  padding: 12px 14px;
  border-top: 1px solid var(--cat-line-soft);
  color: var(--gray-2);
}

.page-products .cat-table-wrap {
  margin-bottom: 34px;
  overflow-x: auto;
  border: 1px solid var(--cat-line);
  background: rgba(6, 26, 36, 0.4);
  -webkit-overflow-scrolling: touch;
}

.page-products .cat-table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-products .cat-table thead th {
  padding: 14px 16px;
  text-align: left;
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--white);
  background: var(--ink-900);
  border-bottom: 1px solid var(--cat-line);
}

.page-products .cat-table tbody th,
.page-products .cat-table tbody td {
  padding: 16px;
  text-align: left;
  vertical-align: top;
  line-height: 1.65;
  color: var(--gray-2);
  border-bottom: 1px solid var(--cat-line-soft);
}

.page-products .cat-table tbody th {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--white);
  white-space: nowrap;
}

.page-products .cat-table tbody tr {
  transition: background-color 0.18s ease, box-shadow 0.18s ease;
}

.page-products .cat-table tbody tr:hover td,
.page-products .cat-table tbody tr:hover th,
.page-products .cat-table tbody tr:focus-within td,
.page-products .cat-table tbody tr:focus-within th {
  background: rgba(37, 240, 224, 0.06);
}

.page-products .cat-table__row--current th,
.page-products .cat-table__row--current td {
  background: rgba(217, 164, 65, 0.08);
  box-shadow: inset 0 0 0 1px var(--cat-gold-soft);
  color: var(--white);
}

.page-products .cat-switch {
  border-top: 1px solid var(--cat-line);
  padding-top: 26px;
}

.page-products .cat-switch__bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
}

.page-products .cat-switch__tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  font-size: 14px;
  color: var(--gray-2);
  background: rgba(248, 250, 251, 0.04);
  border: 1px solid var(--cat-line);
  cursor: pointer;
  transition: color 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

.page-products .cat-switch__tab .mono {
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--gold);
}

.page-products .cat-switch__tab:hover {
  color: var(--white);
  border-color: var(--cat-glow);
}

.page-products .cat-switch__radio:focus-visible + .cat-switch__bar .cat-switch__tab {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-products #pick-v1:checked ~ .cat-switch__bar [for="pick-v1"],
.page-products #pick-v2:checked ~ .cat-switch__bar [for="pick-v2"],
.page-products #pick-v3:checked ~ .cat-switch__bar [for="pick-v3"] {
  color: var(--ink-900);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-products #pick-v1:checked ~ .cat-switch__bar [for="pick-v1"] .mono,
.page-products #pick-v2:checked ~ .cat-switch__bar [for="pick-v2"] .mono,
.page-products #pick-v3:checked ~ .cat-switch__bar [for="pick-v3"] .mono {
  color: var(--ink-900);
}

.page-products .cat-switch__panel {
  display: none;
  padding: 22px 20px;
  background: rgba(248, 250, 251, 0.05);
  border: 1px solid var(--cat-line);
  border-left: 3px solid var(--cyan);
}

.page-products #pick-v1:checked ~ .cat-switch__panels #panel-v1,
.page-products #pick-v2:checked ~ .cat-switch__panels #panel-v2,
.page-products #pick-v3:checked ~ .cat-switch__panels #panel-v3 {
  display: block;
}

.page-products .cat-switch__panel-title {
  margin: 0 0 12px;
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 700;
  color: var(--white);
}

.page-products .cat-switch__panel-text {
  margin: 0 0 18px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--gray-2);
}

.page-products .cat-switch__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
  background: var(--cat-line-soft);
}

.page-products .cat-switch__list li {
  padding: 11px 14px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--gray-2);
  background: rgba(6, 26, 36, 0.55);
}

/* ---------- 04 入口章节 ---------- */
.page-products .cat-entry-band {
  padding: 56px 0;
}

.page-products .cat-entry {
  display: grid;
  gap: 18px;
  margin-bottom: 28px;
}

.page-products .cat-entry__card {
  padding: 24px 20px;
  background: var(--white);
  border: 1px solid var(--cat-line-soft);
  border-left: 3px solid var(--ink-800);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.page-products .cat-entry__card:hover,
.page-products .cat-entry__card:focus-within {
  border-left-color: var(--cyan);
  box-shadow: 0 2px 0 0 var(--cat-line);
}

.page-products .cat-entry__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 14px;
}

.page-products .cat-entry__device {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--ink-800);
}

.page-products .cat-entry__title {
  margin: 0 0 12px;
  font-family: var(--font-head);
  font-size: 19px;
  font-weight: 700;
  color: var(--ink-800);
}

.page-products .cat-entry__text {
  margin: 0 0 18px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink-700);
}

.page-products .cat-entry__list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--cat-line-soft);
}

.page-products .cat-entry__list li {
  display: grid;
  grid-template-columns: 74px 1fr;
  gap: 10px;
  padding: 10px 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink-700);
  border-bottom: 1px solid var(--cat-line-soft);
}

.page-products .cat-entry__list .mono {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--gold);
}

.page-products .cat-entry__figure {
  margin: 0;
  border: 1px solid var(--cat-line-soft);
  background: var(--paper-2);
}

.page-products .cat-entry__figure .media-frame__caption {
  padding: 12px 14px;
  border-top: 1px solid var(--cat-line-soft);
  color: var(--gray);
}

/* ---------- 05 资料下载 ---------- */
.page-products .cat-download-band {
  padding: 56px 0;
}

.page-products .cat-downloads {
  display: grid;
  gap: 14px;
  margin-bottom: 30px;
}

.page-products .cat-download {
  padding: 20px 18px;
  border: 1px solid var(--cat-line);
  border-top: 2px solid transparent;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.page-products .cat-download:hover,
.page-products .cat-download:focus-within {
  border-top-color: var(--cyan);
  background: rgba(37, 240, 224, 0.06);
}

.page-products .cat-download__tag {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--gold);
}

.page-products .cat-download__title {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 700;
  color: var(--white);
}

.page-products .cat-download__text {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--gray-2);
}

.page-products .cat-download__meta {
  margin: 0;
  padding-top: 10px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gray-2);
  border-top: 1px dashed var(--cat-line);
}

.page-products .cat-download__figure {
  margin: 0 0 24px;
  border: 1px solid var(--cat-line);
}

.page-products .cat-download__figure .media-frame__caption {
  padding: 12px 14px;
  border-top: 1px solid var(--cat-line-soft);
  color: var(--gray-2);
}

.page-products .cat-download__foot {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--gray-2);
}

.page-products .cat-download__foot .cat-link {
  color: var(--cyan);
  border-color: var(--cat-glow);
}

.page-products .cat-download__foot .cat-link:hover,
.page-products .cat-download__foot .cat-link:focus-visible {
  color: var(--gold);
}

/* ---------- 06 建议 ---------- */
.page-products .cat-advice-band {
  padding: 56px 0 64px;
}

.page-products .cat-advice__figure {
  margin: 0 0 28px;
  border: 1px solid var(--cat-line-soft);
  background: var(--paper-2);
}

.page-products .cat-advice__figure .media-frame__caption {
  padding: 12px 14px;
  border-top: 1px solid var(--cat-line-soft);
  color: var(--gray);
}

.page-products .cat-advice {
  display: grid;
  gap: 16px;
  margin-bottom: 34px;
}

.page-products .cat-advice__item {
  padding: 22px 20px;
  background: var(--white);
  border: 1px solid var(--cat-line-soft);
  border-bottom: 2px solid var(--paper-2);
  transition: border-bottom-color 0.2s ease;
}

.page-products .cat-advice__item:hover,
.page-products .cat-advice__item:focus-within {
  border-bottom-color: var(--gold);
}

.page-products .cat-advice__num {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.page-products .cat-advice__title {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 700;
  color: var(--ink-800);
}

.page-products .cat-advice__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink-700);
}

.page-products .cat-tail {
  display: grid;
  gap: 18px;
  padding: 24px 20px;
  background: var(--ink-800);
  border-left: 3px solid var(--cyan);
}

.page-products .cat-tail__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(248, 250, 251, 0.86);
}

.page-products .cat-tail__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 图片通用 ---------- */
.page-products .media-frame__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-products .cat-hero__facts {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-products .cat-overview__side {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-products .cat-entry__list li {
    grid-template-columns: 84px 1fr;
  }
}

@media (min-width: 760px) {
  .page-products .cat-overview {
    grid-template-columns: 1.45fr 1fr;
    gap: 26px;
  }

  .page-products .cat-overview__main {
    padding: 30px 28px;
  }

  .page-products .cat-overview__side {
    grid-template-columns: 1fr;
  }

  .page-products .cat-entry {
    grid-template-columns: repeat(2, 1fr);
    gap: 22px;
  }

  .page-products .cat-downloads {
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
  }

  .page-products .cat-advice {
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }

  .page-products .cat-advice__item:nth-child(2) {
    transform: translateY(14px);
  }

  .page-products .cat-tail {
    grid-template-columns: 1.6fr auto;
    align-items: center;
  }
}

@media (min-width: 980px) {
  .page-products .cat-hero {
    padding: 40px 0 76px;
  }

  .page-products .cat-hero__grid {
    grid-template-columns: 1.04fr 0.96fr;
    gap: 46px;
    align-items: center;
  }

  .page-products .cat-overview-band,
  .page-products .cat-map-band,
  .page-products .cat-entry-band,
  .page-products .cat-download-band,
  .page-products .cat-advice-band {
    padding: 74px 0;
  }

  .page-products .cat-downloads {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-products .cat-switch__panel {
    padding: 30px 28px;
  }
}

@media (min-width: 1200px) {
  .page-products .cat-hero__facts {
    max-width: 620px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products *,
  .page-products *::before,
  .page-products *::after {
    transition-duration: 0.001ms !important;
    animation-duration: 0.001ms !important;
  }
}